X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from [68.202.132.19] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WEBUSER 5.1.3) with HTTP id 1637287 for lml@lancaironline.net; Mon, 04 Dec 2006 02:32:35 -0500 From: "Marvin Kaye" Subject: Re: [LML] Re: Garmin SL30 built-in intercom To: lml X-Mailer: CommuniGate Pro WebUser v5.1.3 Date: Mon, 04 Dec 2006 02:32:35 -0500 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain;charset="iso-8859-1";format="flowed" Content-Transfer-Encoding: 8bit Posted for "Bob B." : Bob, I have a SL60 GPS/COM which I think is very similar to the SL30 NAV/COM. It requires a switch or button to use the intercom. The manuals hardly mention the intercom, the installation manual shows one pin with the remark "pull low to turn on the intercom function". The installation manual also states that the monitor function is inhibited when the intercom function is selected. Instead of the built-in, I use a Sigtronics SPA400 which is about the size of a cigarette package and works very well. You just need a panel space about 1" by 2". http://www.sigtronics.com/air/spa.html If one has just two radios, an audio panel is not really necessary. A toggle switch will select com1/com2, and a simple resistor network will mix the audio. I have wiring diagrams if you want to look at them. Bob Belshe Moraga, CA Lancair 235/320 http://home.comcast.net/~rbelshe/ """ I am considering a radio upgrade in my 235/320. Not having acres of panel space like a Lancair IV, I am looking for small, lightweight configurations. One possiblity is to use the Garmin SL30 Nav/Com which includes a built-in 2-place intercom. Having only two seats, and no room for more, that seems like it might suffice while also allowing me to listen to the standy frequency, and monitor the radial from the standby VOR. It all sounds pretty slick... But - will I be happy with the intercom's performance? Or will I want a separate audio panel anyway? The intercom does not have dedicated knobs, but instead requires twisting and selecting menu items to adjust volume or squelch. Does the SL30 have non-muting inputs for alarms or annunciators? If anyone is using an SL30 and its integrated intercom, I'd like to hear about your results. -bob mackey bob (AT) pure-flight.com """